from django.conf.urls.defaults import *
from django.shortcuts import render_to_response,get_object_or_404
from lino.django.polls.models import Poll, Choice
from django.http import HttpResponse
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse


#~ def index(request):
    #~ latest_poll_list = Poll.objects.all().order_by('-pub_date')[:5]
    #~ return render_to_response('polls/index.html', {'latest_poll_list': latest_poll_list})

#~ def detail(request, poll_id):
    #~ p = get_object_or_404(Poll, pk=poll_id)
    #~ return render_to_response('polls/detail.html', {'poll': p})

#~ def results(request, poll_id):
    #~ p = get_object_or_404(Poll, pk=poll_id)
    #~ return render_to_response('polls/results.html', {'poll': p})
    

def vote(request, poll_id):
    p = get_object_or_404(Poll, pk=poll_id)
    try:
        selected_choice = p.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        # Redisplay the poll voting form.
        return render_to_response('polls/poll_detail.html', {
            'poll': p,
            'error_message': "You didn't select a choice.",
        })
    else:
        selected_choice.votes += 1
        selected_choice.save()
        # Always return an HttpResponseRedirect after successfully dealing
        # with POST data. This prevents data from being posted twice if a
        # user hits the Back button.
        return HttpResponseRedirect(reverse('poll_results', 
                                            args=(p.id,)))
